I've tried changing the appearance of cannoks to wraids in the .utc file or wraids, alng with making them tougher (900 vp points for cannoks, lol), but it isn't working. They are tougher at 900 vp points, but they did not change appearance.

What is the problem? This seems to never work in the game. Therefore it's got to be something else controlling it. Could someone explain to me how to change the appearance of enemy NPCs then?